Study of subbituminous coal chars: Effect of heat treatment temperature on their structural characteristics

M.C. GUTIERREZ; A. L. CUKIERMAN; N.O. LEMCOFF

JOURNAL OF CHEMICAL TECHNOLOGY AND BIOTECHNOLOGY

JOHN WILEY & SONS LTD

Lugar: LOndres; Año: 1988 vol. 41 p. 85 - 94

0268-2575

Changes in the apparent surface area that are produced by carbonisation of a subbituminous coal at different temperatures are followed by adsorption of CO2 at 273 K and 298 K, the Dubinin?Radushkevich equation being used. Activated diffusion effects are found for the char samples prepared at 973 and 1173 K. A maximum in the apparent surface area is found at 1073 K.